<?php
namespace app\common\traits;

use app\common\audit\AuditBuffer;
use Illuminate\Database\Eloquent\Model;

trait Auditable
{
    // 可在模型中设置：
    // public $auditDisabled = true;     // 关闭该模型的日志
    // public $auditScene    = 'alias';  // 覆盖默认场景（默认=表名）

    public static function bootAuditable()
    {
        static::created(function (Model $m) {
            if (self::isMuted($m)) return;
            AuditBuffer::instance()->pushModelChange(self::scene($m), $m->getKey(), [], $m->getAttributes());
        });

        static::updated(function (Model $m) {
            if (self::isMuted($m)) return;
            $dirty = $m->getDirty();
            if (!$dirty) return;
            $old = []; $new = [];
            foreach (array_keys($dirty) as $k) {
                $old[$k] = $m->getOriginal($k);
                $new[$k] = $m->getAttribute($k);
            }
            AuditBuffer::instance()->pushModelChange(self::scene($m), $m->getKey(), $old, $new);
        });

        static::deleted(function (Model $m) {
            if (self::isMuted($m)) return;
            AuditBuffer::instance()->pushModelChange(self::scene($m), $m->getKey(), $m->getAttributes(), []);
        });
    }

    protected static function scene(Model $m): string
    {
        return property_exists($m, 'auditScene') && $m->auditScene ? $m->auditScene : $m->getTable();
    }

    protected static function isMuted(Model $m): bool
    {
        if (property_exists($m, 'auditDisabled') && $m->auditDisabled) return true;
        return $m->getTable() === 'sys_op_log'; // 避免自记录
    }
}